Galaxy S4 has first U.S. launch date: May 1 on T-Mobile

T-Mobile USA's disclosure on Tuesday that it will introduce Samsung Electronics' new Galaxy S4 on May 1 offered the first indication on when the smartphone will come to the U.S. The telecom did not disclose any pricing details for Samsung's flagship device. Samsung's Galaxy S III phones will not be compatible with T-Mobile's new Long-Term Evolution network that began rolling out Tuesday in seven markets. The phone lacks a compatible LTE radio, a T-Mobile executive said.